//------------------------------------------------------------
//  Filename: tb.sv
//   
//  Author  : wlduan@gmail.com
//  Revise  : 2020-06-01 08:41
//  Description: 
//   
//  Copyright (C) 2014, YRBD, Inc. 					      
//  All Rights Reserved.                                       
//-------------------------------------------------------------
//
`timescale 1ps/1ps
 
module tb (); 
     
reg clk_100m;  
reg clk_25m;  
reg clk_13_5m;  
reg rst  ;

initial begin
    clk_100m = 0;
    forever #5000 clk_100m = ~clk_100m;
end

initial begin
    clk_25m = 0;
    forever #20000 clk_25m = ~clk_25m;
end

initial begin
    clk_13_5m = 0;
    forever #37037 clk_13_5m = ~clk_13_5m;
end

initial begin
    rst      = 1;
    #800000  rst = 0;
end    
      
parameter SIM_TIME = 200ms;

initial begin
    $fsdbDumpfile("test.fsdb");
    $fsdbDumpvars();
end

initial begin
    #SIM_TIME ;
    $finish();
end

endmodule
